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#1 2010-05-12 11:49:09
Math Expectations. .
Honestly, I'm annoyed. We got rid of 6th Grade, (Year 7) algorithm, and move on to Algebra. [We already did Geometry].
Anyways, I was really excited until I looked at our first question:
NYRS: Grade 6 MATHEMATICS wrote:
The sum of two consecutive odd integers is 124. What are the integers?
, really?
The two integers are 61 and 63.
x+x+2=124. x=61. 61+2=63. Duh.
61
+ 63
-------
124
ʕ •ᴥ•ʔ
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#2 2010-05-12 12:00:20
- juststickman
- Scratcher
- Registered: 2009-05-31
- Posts: 1000+
Re: Math Expectations. .
Algebra isn't hard IMO, it's just the amount of work you have to do.
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#5 2010-05-12 20:24:40
- AnonymousTom
- Scratcher
- Registered: 2010-03-19
- Posts: 100+
Re: Math Expectations. .
Composer wrote:
Honestly, I'm annoyed. We got rid of 6th Grade, (Year 7) algorithm, and move on to Algebra. [We already did Geometry].
Anyways, I was really excited until I looked at our first question:NYRS: Grade 6 MATHEMATICS wrote:
The sum of two consecutive odd integers is 124. What are the integers?
The two integers are 61 and 63.x+x+2=124. x=61. 61+2=63. Duh.
61
+ 63
-------
124
Thats simple algebra anyway.
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#6 2010-05-12 20:40:22
Re: Math Expectations. .
It's not hard. You could also do that with a fun little formula:
x-1+x+1=124.
Then you solve it down.
2x=124
x=62
And therefore, x-1 and x+1 are 61 and 63. It gets harder when you get further into the math curriculum.
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#7 2010-05-12 21:08:08
Re: Math Expectations. .
Composer wrote:
Honestly, I'm annoyed. We got rid of 6th Grade, (Year 7) algorithm, and move on to Algebra. [We already did Geometry].
Anyways, I was really excited until I looked at our first question:NYRS: Grade 6 MATHEMATICS wrote:
The sum of two consecutive odd integers is 124. What are the integers?
The two integers are 61 and 63.x+x+2=124. x=61. 61+2=63. Duh.
61
+ 63
-------
124
You could also do
x=61
(x*2)+2=124
x+2=63
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#8 2010-05-12 21:35:45
Re: Math Expectations. .
Try this: What Graph does this produce?
(Y-2)^2+X^2=64
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#9 2010-05-12 21:40:39
Re: Math Expectations. .
Nonono, some of you misunderstand. He or she means that it's too easy. That does look easy for eleven or twelve years old. We did stuff like
( x + a ) ( x + b) = 0.
Last edited by cocoanut (2010-05-12 21:42:35)
Please leave a message at the beep.Steam: Hellephant
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#10 2010-05-12 21:41:43
- joeisawesome
- Scratcher
- Registered: 2008-06-10
- Posts: 1000+
Re: Math Expectations. .
lol, wait to you get to factoring.
x^2-64
(x+8)(x-8)
45x^2+99x+54
9(5x^2+11x+6)
9(x+1)(5x+6)
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#11 2010-05-12 21:56:44
Re: Math Expectations. .
joeisawesome wrote:
lol, wait to you get to factoring.
Lets try x=10
x^2-64 10^2=100. 100-64=36.
(x+8)(x-8) 10+8=18. 10-8=2. 18*2=36.
45x^2+99x+54 45*10=450. 450^2=202500. 202500+99=202599. 202599*10=2025990. 2025990+54=2026044.
9(5x^2+11x+6) 5*10=50. 50^2=2500. 2500+11=2511. 2511*10=25110. 25110+6=25116. 9*25116=226044.
9(x+1)(5x+6) 10+1=11. 9*11=99. 5*10=50. 50+6=56. 99*56=5544.
My edits are in red
Am I correct?
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#12 2010-05-12 22:41:46
Re: Math Expectations. .
Just wait to you get to... I won't say- it might scare you. 
You're lucky compared to my 6th grade experience. My school didn't have any accelerated classes and they wouldn't let 6th graders take 7th grade math. We did simple stuff all year- you know what I mean- fractions, factors, primes, (very) simple geometry, etc. At the end of the year we did some "algebra." In other words, we solved simple (as in 4x+5=25) linear equations 
Yuck.
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#16 2010-05-12 23:05:19
Re: Math Expectations. .
scmb1 wrote:
AmoebaMan wrote:
can you solve a system of equations with 4 variables? and not the cheapo rref([A]) thing on a calculator.
Yes... And it's incredibly tedious.
yes, its a royal pain in the @$$. hooray for calculators. lets leave math to the machines and go out and play kickball.
but actually, the question was directed at composer, the dude who was complaining bout easy problems. be careful what you wish for man.
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#17 2010-05-12 23:13:18
Re: Math Expectations. .
AmoebaMan wrote:
scmb1 wrote:
AmoebaMan wrote:
can you solve a system of equations with 4 variables? and not the cheapo rref([A]) thing on a calculator.
Yes... And it's incredibly tedious.
yes, its a royal pain in the @$$. hooray for calculators. lets leave math to the machines and go out and play kickball.
but actually, the question was directed at composer, the dude who was complaining bout easy problems. be careful what you wish for man.
Yeah, I figured you weren't asking me, but most of them probably don't know what you're talking about when you say rref, so I decided to answer you 
Have you ever had to do regression without a graphing calculator? That's worse, I'd say. And I'm only in PreCalc, so I know it'll get way harder. It's a good thing I like math.
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#18 2010-05-13 00:35:05
Re: Math Expectations. .
cocoanut wrote:
I guess I was lucky to live when we did quadratic equations when I was 12.
I did cubic equations at 11!
Maybe it's because I am a year ahead.
The future belongs to those who believe in the beauty of their dreams.
~ Eleanor Roosevelt
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#19 2010-05-13 00:39:12
- Blade-Edge
- Scratcher
- Registered: 2009-06-13
- Posts: 1000+
Re: Math Expectations. .
Composer wrote:
Honestly, I'm annoyed. We got rid of 6th Grade, (Year 7) algorithm, and move on to Algebra. [We already did Geometry].
Anyways, I was really excited until I looked at our first question:NYRS: Grade 6 MATHEMATICS wrote:
The sum of two consecutive odd integers is 124. What are the integers?
The two integers are 61 and 63.x+x+2=124. x=61. 61+2=63. Duh.
61
+ 63
-------
124
That math may be wrong
61 and 63 aren't consecutive
Or what, they are? I don't get maths. Or maybe my definition of consecutive is wrong
Last edited by Blade-Edge (2010-05-13 00:41:50)
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#20 2010-05-13 05:31:09
- HelenWonky
- Scratcher
- Registered: 2009-12-16
- Posts: 100+
Re: Math Expectations. .
Everyone always makes a big deal about algebra being hard. It's not that hard. Even in advanced maths, it's still pretty easy. Or maybe I'm just good at maths!
In fact, algebra is just like using the variables in Scratch!
<when I receive[ Maths problem
<think[ x=7
<if><< <not> <( x <=> 7 )>>>
<set{ Emotion }to( 
<play sound[ groan
<say[ This is too hard!
<else>
<play sound[ Homer_woohoo
<say[ Woohoo!
<end>
<set{ π }to( being eaten
Last edited by HelenWonky (2010-05-14 21:10:39)
Like The Big Bang Theory? Like to play Secret Agent Laser Obstacle Chess?
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#21 2010-05-13 22:21:57
- joeisawesome
- Scratcher
- Registered: 2008-06-10
- Posts: 1000+
Re: Math Expectations. .
ThePCKid wrote:
joeisawesome wrote:
lol, wait to you get to factoring.
Lets try x=10
x^2-64 10^2=100. 100-64=36.
(x+8)(x-8) 10+8=18. 10-8=2. 18*2=36.
45x^2+99x+54 45*10=450. 450^2=202500. 202500+99=202599. 202599*10=2025990. 2025990+54=2026044.
9(5x^2+11x+6) 5*10=50. 50^2=2500. 2500+11=2511. 2511*10=25110. 25110+6=25116. 9*25116=226044.
9(x+1)(5x+6) 10+1=11. 9*11=99. 5*10=50. 50+6=56. 99*56=5544.My edits are in red
Am I correct?
First one is, not sure where you're going on the second one, lulz, i failed math.
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#22 2010-05-13 23:54:14
- PlayWithFire
- Scratcher
- Registered: 2010-01-20
- Posts: 1000+
Re: Math Expectations. .
pretty sure consecutive means you know, one away. otherwise all numbers would be consecutive.
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#23 2010-05-14 04:03:38
- HelenWonky
- Scratcher
- Registered: 2009-12-16
- Posts: 100+
Re: Math Expectations. .
NYRS: Grade 6 MATHEMATICS wrote:
The sum of two consecutive odd integers is 124. What are the integers?
They can't be consecutive consecutive numbers, because you can't have 2 consecutive odd numbers!
Last edited by HelenWonky (2010-05-14 04:03:57)
Like The Big Bang Theory? Like to play Secret Agent Laser Obstacle Chess?
All glory to the Hypno-Toad.Offline
#24 2010-05-14 10:52:27
Re: Math Expectations. .
HelenWonky wrote:
NYRS: Grade 6 MATHEMATICS wrote:
The sum of two consecutive odd integers is 124. What are the integers?
They can't be consecutive consecutive numbers, because you can't have 2 consecutive odd numbers!
Uh, yeah.
Consecutive odd numbers: 1, 3, 5, 7, 9...
Consecutive numbers would include all of it, 1, 2, 3, 4, 5...
Blade-Edge wrote:
Or what, they are? I don't get maths. Or maybe my definition of consecutive is wrong
They are consecutive odd numbers. i.e., you take out the evens, and then find what the consecutive numbers are.
Please leave a message at the beep.Steam: Hellephant
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#25 2010-05-14 17:36:59
- 16Skittles
- Scratcher
- Registered: 2009-08-26
- Posts: 1000+
Re: Math Expectations. .
scmb1 wrote:
Just wait to you get to... I won't say- it might scare you.
I skipped 5th this year and still do math a grade ahead
Last edited by 16Skittles (2010-05-14 17:37:31)
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